Read by QxMD icon Read

thyroid pregnancy

Mock Ryeon Kim, Hye Won Park, Sochung Chung
In adults, hypothyroidism caused by thyroid stimulation blocking antibody (TSB Ab) is rare, and confirmed cases are even fewer, as TSB Ab levels are rarely assayed. However, this may create problems in babies, as the transplacental passage of maternal TSB Ab can cause a rare type of hypothyroidism in the infant. Prompt levothyroxine replacement for the baby starting immediately after birth is important. We describe a congenital hypothyroid baby born to a hypothyroid mother who was not aware of the cause of her hypothyroid condition, which turned out to be associated with the expression of TSB Ab...
September 2016: Annals of Pediatric Endocrinology & Metabolism
Zoe Daniel, Angelina Swali, Richard Emes, Simon C Langley-Evans
BACKGROUND: Fetal exposure to a maternal low protein diet during rat pregnancy is associated with hypertension, renal dysfunction and metabolic disturbance in adult life. These effects are present when dietary manipulations target only the first half of pregnancy. It was hypothesised that early gestation protein restriction would impact upon placental gene expression and that this may give clues to the mechanism which links maternal diet to later consequences. METHODS: Pregnant rats were fed control or a low protein diet from conception to day 13 gestation...
2016: Genes & Nutrition
Satoko Kinomoto-Kondo, Nagayoshi Umehara, Shiori Sato, Kohei Ogawa, Takeo Fujiwara, Naoko Arata, Haruhiko Sago
PURPOSE: To study the effects of gestational transient thyrotoxicosis (GTT) on pregnancy outcomes. METHODS: This case-control study retrospectively analyzed 7976 women with singleton pregnancies whose thyroid function was measured before 16 weeks of gestation and who delivered at ≥22 weeks of pregnancy. GTT was defined as hyperthyroidism (free thyroxine [FT4] level: ≥95th percentile) in the early pregnancy, which normalized in mid-pregnancy without thyroid-stimulating hormone receptor antibodies...
October 20, 2016: Archives of Gynecology and Obstetrics
Sarah C Bath, Victor J M Pop, Victoria L Furmidge-Owen, Maarten Broeren, Margaret P Rayman
Background Though iodine deficiency in pregnancy is a matter of public-health concern, a functional measure of iodine status is lacking. The thyroid-specific protein, thyroglobulin (Tg), which reflects thyroid size, has shown promise as a functional measure in studies of children and adults, but data in pregnancy are sparse. In a cohort of mildly-to-moderately iodine-deficient pregnant women, we aimed to explore whether serum Tg is a sensitive functional biomarker of iodine status and to examine longitudinal change in Tg with gestational age...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
N D Karnik, Suhail S Siddiqui, Shashikant K Mhashal, Priya Bhate, Vishal Gupta, Krithika D Murlidhara
No abstract text is available yet for this article.
September 2016: Journal of the Association of Physicians of India
Eunice López-Muñoz, Jorge Antonio Ibarra-Avalos, Rosario Guadalupe Chan-Verdugo, Leovigildo Mateos-Sánchez, Olivia Sánchez-Rodríguez
In order to determine the prevalence of overt and subclinical hypothyroidism, and isolated hypothyroxinemia during pregnancy, thyroid hormone reference values established by UMAE HGO4, IMSS in Mexico City and those suggested by the American Thyroid Association (ATA) were used. All pregnant patients, whose thyroid function was measured and whose pregnancy was monitored and resolved in UMAE HGO4, IMSS from 1 January to 31 December 2013, were included. Significant differences (p = .00419) were observed in the frequency of subclinical hypothyroidism, being higher when using ATA criteria (18...
October 20, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Tim I M Korevaar, Eric A P Steegers, Victor J Pop, Maarten A Broeren, Layal Chaker, Yolanda B de Rijke, Vincent W V Jaddoe, Marco Medici, Theo J Visser, Henning Tiemeier, Robin P Peeters
CONTEXT: Thyroperoxidase antibody (TPOAb) positivity is the main risk factor for thyroid dysfunction during pregnancy and is consistently associated with premature delivery. However, the underlying mechanism is currently unknown. We hypothesized that TPOAb positivity may interfere with gestational thyroid stimulation induced by the pregnancy hormone human chorionic gonadotropin (hCG). DESIGN, SETTING AND PARTICIPANTS: TSH, FT4, TPOAbs and/or hCG concentrations were measured in early and late pregnancy of 7587 pregnant women from two Dutch population-based prospective cohorts (N=5924 Generation R; N=1663 HAPPY)...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Natalie M Crawford, Anne Z Steiner
Thyroid hormones are important for normal reproductive function, and maternal thyroid dysfunction has been associated with infertility, miscarriage, preterm birth, and poor neurodevelopment in the offspring. Thyroid autoimmunity is the leading cause of thyroid dysfunction in women of reproductive age. Women with thyroid autoimmunity, even with normal thyroid function, appear to be at a higher risk for poor reproductive outcomes, including miscarriage and preterm birth. Thyroxine replacement in women with thyroid autoimmunity with or without appreciable thyroid dysfunction may improve pregnancy outcomes...
October 17, 2016: Seminars in Reproductive Medicine
Sophia S Yu, Lindsay A Bischoff
Owing to the young median age of diagnosis, thyroid cancer in women can coincide with pregnancy and affect its management. The evaluation of a thyroid nodule in pregnant women is similar to that in nonpregnant women, but special consideration must be taken for the impact of a cancer diagnosis and its sequelae in pregnancy. The initial comprehensive exam for pregnant and nonpregnant women includes evaluation of the biochemical function and structure of the thyroid gland, and then fine-needle aspiration biopsy of any suspicious nodule...
October 14, 2016: Seminars in Reproductive Medicine
Aimee Seungdamrong
Subclinical hypothyroidism has been found to be associated with adverse reproductive outcomes, such as infertility, miscarriage, preterm birth, and complications of pregnancy. Multiple studies have investigated the relationships between thyroid function, thyroid antibodies, fertility, and pregnancy. Thyroid autoimmunity is the most common cause of hypothyroidism in iodine-sufficient locations. Thyroid antibodies have been associated with adverse reproductive outcomes such as miscarriage and infertility. Debate exists regarding the method of identification of thyroid dysfunction in pregnancy, which can be conducted by targeted screening or by universal screening...
October 14, 2016: Seminars in Reproductive Medicine
Sudipa Sarkar, Lindsay A Bischoff
Hyperthyroidism can occur during pregnancy and the postpartum period, and the treatment of hyperthyroidism should be considered in the preconception phase. Pregnancy has multiple normal physiologic effects on thyroid hormone, which is a separate process distinct from syndromes such as transient hyperthyroidism of hyperemesis gravidarum. The rationale regarding antithyroid drug use during different stages of pregnancy is reviewed, including the literature regarding adverse neonatal outcomes such as aplasia cutis and methimazole embryopathy in the setting of first trimester maternal methimazole use...
October 14, 2016: Seminars in Reproductive Medicine
Jeffrey M Kroopnick, Caroline S Kim
Overt hypothyroidism in pregnancy, defined as an elevated serum thyroid-stimulating hormone (TSH) and reduced serum free thyroxine or a TSH >10 mIU/L, is known to have adverse effects on pregnancy. Subclinical hypothyroidism is typically defined as an elevated TSH and normal FT4 levels. There remains much controversy on the benefit of starting levothyroxine for mothers diagnosed with subclinical hypothyroidism. Recent studies are redefining the normal range for TSH in pregnancy, and the data on whether treatment of subclinical hypothyroidism improves outcomes for the mother and fetus are unclear...
October 14, 2016: Seminars in Reproductive Medicine
Xiaomei Zhang, Baoting Yao, Chenyan Li, Jinyuan Mao, Weiwei Wang, Xiaochen Xie, Xiaochun Teng, Cheng Han, Weiwei Zhou, Chenyang Li, Bin Xu, Lihua Bi, Tao Meng, Jianling Du, Shaowei Zhang, Zhengnan Gao, Liu Yang, Chenling Fan, Weiping Teng, Zhongyan Shan
BACKGROUND: Self-sequential longitudinal reference interval may be expected to minimize the inter-individual variation of thyroid function. Comparison between self-sequential longitudinal reference interval and cross-sectional reference interval in pregnancy has not been well investigated. The objective of this study is to establish a stringent self-sequential longitudinal reference interval (SLRI) of thyroid function in pregnant women and to compare it with the conventional cross-sectional reference interval (CSRI)...
October 12, 2016: Thyroid: Official Journal of the American Thyroid Association
Eric De Zoysa, Manjula Hettiarachchi, Chandrani Liyanage
BACKGROUND: Iodine deficiency and thyroid dysfunction during pregnancy is associated with number of adverse outcomes that includes mental and physical disabilities creating a huge human and economic burden in later life. Several indicators are used to assess the iodine status of a population: thyroid size by palpation and/or by ultrasonography, urinary iodine excretion and the blood thyroid hormone profile. METHODS: This prospective study was designed to assess the iodine nutrition during the course of pregnancy with reference to urine iodine concentration (UIC) and thyroid determinants among 425 pregnant women from Galle district, Sri Lanka...
October 12, 2016: BMC Pregnancy and Childbirth
Myrthe M van Dijk, Rosa Vissenberg, Peter H Bisschop, Feroza Dawood, Madelon van Wely, Mariëtte Goddijn, Roy G Farquharson
Thyroid disorders have been associated with recurrent miscarriage. Little evidence is available on the influence of subclinical hypothyroidism on live birth rates. In this cohort study, women who had experienced miscarriage and subclinical hypothyroidism (defined as thyroid-stimulating hormone >97.5th percentile mU/l with a normal thyroxine level) were investigated; the control group included women who had experienced recurrent miscarriage and normal thyroid function. Multivariable logistic regression was used to investigate the association of subclinical hypothyroidism...
September 20, 2016: Reproductive Biomedicine Online
Shalini D Soechitram, Sietske A Berghuis, Theo J Visser, Pieter J J Sauer
BACKGROUND: Several studies have shown effects of polychlorinated biphenyls (PCBs) on serum thyroid hormone levels in pregnant woman and their infants, while other studies did not find such effects. How PCBs might affect thyroid hormone metabolism, is still unclear. Potential mechanisms are direct influence on the thyroid gland, binding to thyroid binding proteins, increased excretion or metabolism of thyroid hormones by deiodinases or sulfatases. It is also not well known whether the effect on thyroid hormone levels is caused by PCBs themselves, or by their hydroxylated metabolites (OH-PCBs)...
October 3, 2016: Science of the Total Environment
Christopher K Thompson, Hollis T Cline
: Thyroid hormone (TH) regulates many cellular events underlying perinatal brain development in vertebrates. Whether and how TH regulates brain development when neural circuits are first forming is less clear. Furthermore, although the molecular mechanisms that impose spatiotemporal constraints on TH action in the brain have been described, the effects of local TH signaling are poorly understood. We determined the effects of manipulating TH signaling on development of the optic tectum in stage 46-49 Xenopus laevis tadpoles...
October 5, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Stine Linding Andersen, Peter Laurberg
Hyperthyroidism in women who are of childbearing age is predominantly of autoimmune origin and caused by Graves' disease. The physiological changes in the maternal immune system during a pregnancy may influence the development of this and other autoimmune diseases. Furthermore, pregnancy-associated physiological changes influence the synthesis and metabolism of thyroid hormones and challenge the interpretation of thyroid function tests in pregnancy. Thyroid hormones are crucial regulators of early development and play an important role in the maintenance of a normal pregnancy and in the development of the fetus, particularly the fetal brain...
2016: International Journal of Women's Health
Melahat Atasever, Muberra Namli Kalem, Çiğdem Sönmez, Mehmet Murat Seval, Seda Sahin Aker, Tuncay Yuce, Acar Koç, Hakan Genc
OBJECTIVE: The aim of the study is to investigate the relationship between changes in serotonin levels during pregnancy and fibromyalgia syndrome(FS) and the relationships between FS and the physical/psychological state, biochemical and hormonal parameters, which may be related to the musculoskeletal system. STUDY DESIGN: This study is a prospective case-control study conducted with 277 pregnant women at the obstetric unit of Ankara University Faculty of Medicine, in the period between January and June 2015...
October 3, 2016: Journal of Maternal-fetal & Neonatal Medicine
Nissim Arbib, Eran Hadar, Orly Sneh-Arbib, Rony Chen, Arnon Wiznitzer, Rinat Gabbay-Benziv
PURPOSE: Maternal thyroid gland dysfunction may adversely affect pregnancy outcome. We aimed to examine the association between subclinical thyroid dysfunction, both hypothyroidism and hyperthyroidism, to adverse pregnancy outcome. MATERIALS AND METHODS: Retrospective cohort study of all women with an available first trimester thyroid function testing and known pregnancy outcome, categorized to subclinical hypothyroidism, or hyperthyroidism and evaluated for complication during gestation and delivery...
October 17, 2016: Journal of Maternal-fetal & Neonatal Medicine
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"